Brand new machine and newest Premiere Pro update. I'm testing the UltraKeyer with some UHD footage in a 1080 timeline. This is an 8-core trash can MacPro with the dual D500 GPUs.
When I adjust any of the Matte Cleanup controls I get vertical lines that break up the alpha image. This doesn't happen with an other keyer on the same system. Anyone else seeing this? If so, is this an issue with these GPUs and UltraKeyer or something that's cropped up in the 2017 version of PPro?